Supply and demand, ... is a very attractive concept.

In the big picture, the whole world at every level, micro, macro, physiological, psychological, material, economical, spiritual, all are a demand-supply problem.

You can do the math. Supply and demand.

Pop culture is not about depth. It's about marketing, supply and demand, consumerism.

Economists always say there is a supply and demand equilibrium.

The demand is far, far exceeding the supply.